>> can't tell you how awful it must be, how awful for patty campbell, the mother of krystle campbell. it's shocking to me she could even go out there and even try to make a statement. i know she tried. and our hearts, of course, go out to her, to the entire family, the families of the other victims, those who were killed. they were all so young. a young boy, now we learn a graduate student at boston university. i don't know how people cope under these circumstances. and dozens of others of parents and family members and friends, they know, those who are seriously critically injured, losing limbs, this is such a horrendous situation. it makes no sense whatsoever. and investigators are trying to figure out what happened. >> that's exactly right. imagine, wolf, the relief at first when you find out that something like this has happened to your family, and you're relieved that at least they're okay. then it becomes the worry as you're hearing that doctors are working, in this case trying to save her leg. then, of course, you're dealing with the grief upon learning about what really happen